Sleek

AI mobile app mockup generator

Sleek AI Mobile App Designer

🚀 Quick Verdict

Sleek surprised us by generating three cohesive screens from a single prompt instead of just one isolated page. The Native Figma export actually keeps layers editable, which saved us hours of recreating elements. It is the fastest way for a founder to get investor-ready mobile screens without touching a canvas.

Overall Score8.8/10
Best ForNon-designers needing mobile MVPs
Tested PlanPro Plan ($20/mo)
Testing Period7 days
Biggest StrengthMulti-screen flow consistency
Biggest WeaknessMobile-only focus limits web use
Best AlternativeScreensDesign

🤔 What Is Sleek?

Sleek is an AI-powered design tool built exclusively for creating mobile app mockups through a chat interface. Developed by a small team of bootstrapped builders, it aims to replace the high cost of freelance designers for early-stage founders and developers.

The tool solves the blank-canvas problem by taking a plain English description and turning it into a polished, high-fidelity UI. Unlike generic site builders, it focuses entirely on mobile UX patterns like bottom navigation bars, pill-shaped buttons, and app-specific layouts.

⚙️ How We Tested Sleek

We signed up for the Pro Plan at $20 per month and spent a full week testing three specific founder tasks. First, we generated a 5-screen onboarding flow for a fitness app. Second, we took a screenshot of an existing grocery app and used the Generate with AI feature to redesign it. Finally, we exported a completed design to Figma to check if the layers remained organized for a developer handoff.

✨ Key Features (What Actually Stood Out)

Sleek feels more like a creative partner than a rigid editor. It simplifies the transition from concept to nocode planning by handling the visual heavy lifting automatically.

  • Multi-Screen Generation — Most tools stop at one screen, but Sleek creates a cohesive flow (e.g., login, dashboard, and settings) in one go so the branding stays consistent.
  • Chat-to-Edit — We changed a theme from Light Mode to “Modern Memphis” just by typing a message, and the AI updated all screens simultaneously.
  • Native Figma Export — Unlike tools that export one flat image, this sends editable vectors directly into Figma, which is vital for professional refinement.
  • Code Export — It produces React + Tailwind CSS code that we successfully dropped into a Claude window to generate a functional frontend.
  • Image-to-Design — We uploaded a rough whiteboard sketch of an expense tracker and Sleek turned it into a high-fidelity mockup with realistic data.

💰 Sleek Pricing — Is It Worth It?

The free tier is good for a quick trial, but professional use requires a subscription to unlock the high-volume credit limits. If you’re currently hiring designers for basic design tasks, the Pro plan pays for itself in one session.

PlanPriceBest ForWatch Out For
Free$0Personal testing1 project limit
Pro$20/moStartups & FoundersFigma export included
Max$200/moAgenciesHigh credit volume

Our pick: Pro Plan — The $20 tier offers 7,000 credits, which is more than enough to iterate on a full app concept and export the results to Figma.

🧪 What We Found During Testing

The speed is the most impressive part. We described a “minimalist Swiss style stop-watch” and had three usable screens in under 60 seconds. The AI correctly guessed that a stop-watch needs a lap-tracking list and a circular timer, which shows it understands app logic rather than just painting pixels.

A founder in our community who runs a health startup told us Sleek helped them show investors a polished prototype in a week when they previously spent months stuck in Figma tutorials.

⚠️ Limitations We Found

  • Mobile Only — As of mid-2024, Sleek does not support web or desktop layouts, which is a dealbreaker if your app needs a browser version.
  • No Interactivity — You cannot build clickable prototypes within Sleek itself; you have to move the design to Figma or code to add logic.
  • Beta Drift — Some complex prompts occasionally led to floating icons or overlapping text that required manual chat corrections.

⚔️ Sleek vs Competitors

While Figma is the industry standard for control, Sleek competes with rapid prototyping tools that focus on speed over manual tweaking.

CompetitorPick it instead of Sleek if…
Figma AIYou are a professional designer who needs full control over every pixel and layer.
ScreensDesignYou want a library of existing app patterns to browse before you start generating.
UizardYou need to build a fully clickable, interactive prototype as well as the static design.

👍 Pros & Cons

  • Generates full flows, not just single screens
  • Credits for generation are very generous
  • Figma layers are clean and editable
  • Great at interpreting abstract “vibes” like 80s or Minimal
  • ✅ Pros❌ Cons
    No mobile app for the tool itself yetLacks a complex component libraryExporting code requires a paid tierCannot design desktop web apps

    🎯 Who Should Use Sleek (And Who Shouldn’t)

    ✅ Use it if you:

    • Are a founder validating an MVP and need visuals for a pitch deck.
    • Are a developer who hates “pixel pushing” in design software.
    • Need to see 5+ different aesthetic directions for an app idea in minutes.

    ❌ Skip it if you:

    • Need a responsive website design alongside your mobile app — use Relume instead.
    • Require a tool with a built-in backend or database.
    • Work in a corporate environment with strict proprietary design system requirements.

    ❓ Frequently Asked Questions

    Is Sleek better than Figma AI?
    Sleek is better for speed and non-designers, while Figma AI is better for those already working in the Figma ecosystem who need granular control.

    Can I export Sleek designs to React?
    Yes, the tool provides React and Tailwind CSS exports which can be used to build a functional frontend quickly.

    Does Sleek offer a trial?
    Sleek has a free plan that allows you to test the generation features on one project before upgrading.

    What is the code PRODUCTHUNT for?
    It provides a 20% discount on any paid plan for life, according to the current promotion.

    Can Sleek design web apps?
    No, Sleek is currently specialized only for mobile app mockups (iOS and Android styles).

    Do I own the designs created with Sleek?
    According to their terms, as a user, you hold the rights to the content you generate, though it is intended for design and informational purposes.

    Looking for more tools like this? See all design tools we’ve reviewed →


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    Features

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    3+ screen flow generation
    Chat-based visual editing
    Native Figma layer export
    React and Tailwind export
    Image to design conversion

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    Usecase

    Pricing

    Free Plan Available

    Languages

    English

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    Enhanced security

    This App supports enhanced security and management features.

    Approved by Kit

    Founder Kit has reviewed this app to ensure high quality project development. We do not endorse or certify these apps.

    Sleek Competitor's and Alternative

    : Business Resources